Which plaster for which job? A guide to choosing building gypsum

Our eight specialty plasters, sorted by what they are for: everyday plastering, fine finishing, concrete, wet areas and fire protection — plus a simple way to estimate how much you need.

Building gypsum is not one product. Over concrete, over brick, inside a pool hall or beside a fireplace, each place calls for a different plaster. The Nikan technical catalog lists eight specialty plasters; this note helps you see which one fits your job.

Everyday wall and ceiling plastering

Matin Super Gypsum is made for interior plastering and needs no special surface preparation — the surface only has to be free of dust and oil. It covers a square metre at 1 mm thickness with about 0.7 kg. Barez Gypsum is a long-known market staple that suits every climate; for the best result nothing such as cement or lime should be mixed into it.

Fine finishing, moulding and the last coat

Momtaz is micronised and used for fine plastering, moulding, décor and mould-making, available in 150, 200 and 300 micron grains. When you want a wall that is ready for paint or wallpaper, Saten is the final coat: a 200 micron grain and about 0.9 kg per m² for every millimetre.

Concrete and machine application

Concrete absorbs less than 2% water, so ordinary gypsum bonds poorly to it. Betogyps is the bonding coat for exactly this, and it removes the need for lath. For going straight onto brick, clay or cement block and silica block, Siva can be applied by machine or by hand, with an application speed of 150 to 200 m² a day reported.

Wet areas and fire

Atan absorbs less than 5% water and is meant for pools, saunas, jacuzzis, kitchens and bathrooms. Atrin is fire-resistant and is suggested for lift machine rooms, walls beside fireplaces and walls that HVAC ducts pass through.

Working out how much you need

Consumption in kilograms equals area × thickness in millimetres × the consumption factor. For example, 100 m² at 3 mm with a factor of 0.9 (Saten) comes to 270 kg — nine 30 kg bags. The estimator on each product page does this sum for you. Actual consumption depends on the surface and on how the plaster is applied, so leave a small margin.

Nikan gypsum is sold by the ton. For a price and delivery terms, open a ticket from the page of the product you need.

Nikan Tejarat Rezaie content team
Looking for a reliable supplier?